Lubricator for pneumatic apparatus.



B. A. EMERY.

LUBRIOATOR FOR PNEUMATIC APPARATUS.

APPLIOATION FILED AUG. 5, 1909.

1,099,242, Patented June 9,1914.

WITNESSES INVENTOR 74m if.

y Atty.

UNITED I STATES; PATENT OFFTQE.

EDWIN A. EMERY, OFIDENVER, COLORADO, ASSIGNOR TO THE EMERY PNEUMATICLUBRICATOR COMPANY, A CORPORATION OF COLORADO.

LUBRICATOR FOR PNEUMATIC APPARATUS.

Specification of Letters Patent.

Patented June 9, 1914.

Application filed August 5, 1909. Serial No. 511,431.

To all whom it may concern:

Be it known that I, EDWIN A. EMnnY, a citizen of the United States,residing at Denver, in the county of Denver and State of Colorado, haveinvented new and useful Improvements in Lubricators for PneumaticApparatus, of which the following 1s a specification.

This invention relates to lubricators for pneumatic machinery andparticularly to apparatus operated by compressed 2111' wherein thelubricant is exposed in or adjacent to the current of compressed air tobe dissolved by the moisture contained therein and conveyed thereby tothe parts to be lubricated, as set forth in my prior Patents 827518 and827519 of July 31, 1906.

My present invention has for one of its objects to provide an improveddevice for containing the lubricant to be used by tlns method, whichdevice shall be of simple and durable construction, eiiicientincperation, easily adjusted and economical 1n the use of lubricant.

Another feature of my present improvement relates more particularly tolubricators for air brake apparatus having quick action triple valves inwhich there is at certain times a sudden and violent action of the airunder pressure due to the rapid venting of air from thetrain brake pipein emergency applications of thebrakes. It has been found in someinstances that this violent action of the air under pressure hasproduced an excessive erosion upon the stick of lubricant locateddirectly in the path of such rapid flow of air, and one object of thisinvention is to provide means whereby this sudden and rapid flow of airmay take place through a passage out of contact with the lubricant whichis however exposed to the action of the air currents in all of the moregradual variations in pressure such as occur in all ordinary serviceapplications.

In the aceompanyingdrawing Figure 1 is a vertical section showing oneform of lubricator embodying my improvements; Fig. 2 a vertical.transverse section taken on line ct-a of Fig. 3 and showing amodification adapted for use in connection with quick action triplevalves in air brake apparatus; Fig. 3 a horizontal section taken on theline c@ of Fig. 4; and Fig. 4 a vertical section taken on the line b?)of Fig. 3.

According to the construction. shown in" Fig. 1 the lubricator comprisesa casing 5 having an air passage 15 with openings for pipe connections 7and 8, and a lateral extension 6, preferably vertical, containingchamber 9 which communicates with air passage 15. The cage 10 is locatedin the chamber 9 and is adapted to hold the stick of lubricant 22, thelower end 11 of the cage beingperforated and extending into the airpassage 15 so as to expose a certain area of the lubricant to the actionof the moisture in the current of compressed air which flows through theair chamber and the pipe connections. The cage 10 may be supported atany desired point by any preferred means and if desirable the supportmay be adjustable as, for instance, by means of the stem 18 and clampnut 14: carried by the cap nut 12 which closes the opening in casing 5through which the lubricant cage is inserted, the upper end of the nut14 be ing split as indicated and adapted to clamp the stem 13 whenscrewed down into the cap nut.

According to the modification shown in Figs. 2, 3 and 4c, the casingwhich is adapted to be attached tothe pipe connections, contains alightly weighted valve 20 normally closing a direct passage through thecasing while a by-passagc 16, 18, 17, is provided around said valve. Asin the plain type lubricator above described, the cage 10 for holdingthe lubricant is located in chamher 9 of extension 6 of the casing andhas a perforated lower end 11 which projects into the chamber or passage18 through which the compressed air flows in all ordinary. serviceapplications and release of the brakes. The valve 20 is designed toswing upon a pivot 19 but any other suitable form or valve may be usedif desired. As shown in this modification the lubricant cage issupported directly upon the plain cap nut 21. but it will be obviousthat either the plain or the adjustable form of cap nut, as shown inFig. 1, may be used in either type of lubricator as desired.

As employed in air brake apparatus the lubricator is usually connectedin the branch pipe leadingfrom the train brake pipe to the triple valvemechanism of the car brake equipment, the plain type as shown in Fig. 1,being adapted for use with plain triple valves and also in otherlocations in a locomotive brake equipment as well as with other forms ofpneumatic machinery wherein the flow of compressed air is not so rapidor violent as to cause an'excessive erosion or disintegration of thelubricant.

The form of lubricator having the check valve is adapted to be used withthe usual car brake. apparatus having a quick action triple valve andthe lubricator is so connected that the check valve may open toward thetriple valve for the purpose of permitting the rapid flowof compressedair due to the opening of the emergency valve and the sudden venting ofthe train pipe in emergency application ofthe brakes as is wellunderstood by all familiar with air brake apparatus.

During all ordinary service applications and releases of the-brakes theflow of the compressed air through the branch pipe to and from thetriple is more gradual and does not lift the valve 20 from its seat butflows through the by-passage around the perforated cage in which thelubricant is exposed to the action of the air current. In this mannerthelubricant is slowly disintegrated and carried by the current ofcompressed air to the triple valve and other moving parts of the airbrake or other mechanism which are thereby thoroughly cleansed andlubricated. V

When an emergency application of the brakes is made, each triple'valveoperates in quick action, opening a large brake pipe vent port andcausing a great and sudden reduction in the branch pipe 7 so that thecompressed air in the brake pipe on the opposite side of check valve 20immediately opens the valve and flows with a rapid and violent actiondirectly through the casing without subjecting the lubricant siveerosion. 7

As the lubricant is gradually eroded and disintegrated from the exposedportion at the bottom of the cage, the stick or charge automaticallyfeeds downward by gravity and continues to furnish the necessarylubrication until the same is nearly or quite exhausted, at which timethe cage may be removed through the opening which is norto exces= mallyclosed by the cap nut. A freshcharge ing having an opening in the bottomthereof opposite said extension for removing the cage, a cap forclosingsaid'opening, and means carried by the cap for supporting the cage.

2. A lubricator for compressed air apparatus, comprising a casing havinga valve controlled-direct passage and an open bying a lubricant in saidby-passage for 6X7 posing the same tothe action of the current ofcompressed air. 7 V

4. A lubricator for air brake apparatus, having a direct passage withopenings for connection with the brake pipe, a normally closed valve insaid passage but adapted to open upon sudden variations in brake pipepressure, a by-passage around said valve,

and means for holding a lubricant in said passage for exposing the sameto the action of the compressedair flowing through the brake pipe. 7 V

5. A lubricatorfor compressed air apparatus, having an air passage, anormally closed valve therein but adapted to open upon, suddenvariations in air pressure, a

by-passage around said valve, and means for holding a lubricant in saidbypassage to' expose the same to the action of the current of compressedair. I x a v 6. A lubricator for compressed air'apparatus, having an airpassage, a normally closed valve therein but adapted to open upon suddenvariations in air pressure, a"

by-passage around said'valve, and a. perfo rated cage for holding alubricant in said by-passage. v V

7 A lubricator for compressed air apparatus, comprising a casinghaving-adirect air passage containing a valve normally closed but adapted toopen upon sudden variations in air pressure, a by-passage for thecompressed air to normally flow around said valve, a chamber extendingfrom 'said by-passage, and a perforated cage for holding a lubricantlocated in said chamber and projecting into the by-passage to expose thelubricant to the action of the current of com pressed air. 1

In testimony whereof I have hereunto set my hand. p

EDWIN A: EMERYJ Witnesses:

C. O. Zmetnnf B. E. ADREAN.

. copies of this patent may be obtained for five cents each, byadd i theqcommissioner s l gg. i Washington, .D. 0.. r

